Filtering apparatus



F. MOREL AND L. TULOUP.

F ILTERING APPARATUS APPLICATION FILED NOV. 9, 1920.

Patented Oct. W, 1922.

Patented on. to,

nnnrx nonnn AND Louis auteur, or rears, lalthNCE.

a e a re p g were 1 niitr'nnrne nrrannr'os.

Application filed November To allwhom it magnomfem:

i {newand useful Improvements in Filtering Apparatus (for which we havefiled applica tion" in France Nov. 21,1919, Patent No.

506,461) andwedo hereby declare the following to be a full,,clear, andeXact description of the invention, such as will enable others skilled.in the art to which it appertains to make and use the same, reference 1being had to the accompanying drawings,

i like.

and to letters or figures of reference marked thereon, which form a partof this specification. i

ratus more particularly adapted to be placed between the fuel reservoirand the carbureter on automobiles, flying machines and the This filter,which retains water and impurities in a most efficient manner, comprisesa casing or receiver'having a pipe at its upper end for admission of thefuel, an inverted bell being arranged below said pipe for causing thefuel to be thrown towards the walls of the receiver. The said bell,encloses the end of a fuel outlet pipe and contains a filter ormultiplescreens arranged substantially in the diametrieplane of the belland entirely surrounding the fuel. outlet pipe so that the fuel isproperly filtered before it can, by rising in the apparatus, penetrateinto theinterior of said outlet pipe through openings providedin thepipe between the filter and the bottom of the bell.

The fuel outlet pipe is of a sufiicient height to allow the fuel to flowout or to be de canted, the impurities and the water remaining at thebottom of the receiver.

Further the apparatus is provided with an inclined partition formingfunnel around the fuel outlet pipe so as to prevent the greater part ofthe impurities and the water from rising with the fuel and coming intocontact with the filter screens.

Finally the receiver has an inclined bot tom having an emptying cock atthe lowest point thereof.

To enable the invention to be fully understood it will now be describedbyreference to the accompanying drawing in which This invention relatesto a filtering appa- 9, 1929. Serial No. 422,809.

Fi lis an outside view of a filtering ap 5 paratus constructed accordingto the invention and i Fig. 2 is a vertical section thereof.

The filtering apparatus comprises, a receiver 0r reservoir a which maybe of cylindrical or other desired shape, having a pipe 6 at its upperend which may be connected to the fuel delivery pipe of thefuel tank.

beil or mushroom head e ,isarranged be i low the end 6 of the pipe 5,made of stamped sheet metal for example, and is fixed or riveted to theend of the outlet pipe .0. The tube 0 is preferably arranged in the central axisof the receiver a and is provided with openings g for thepassage of the fuel. Before reaching the openings 9 the fuel is filteredby means of multiple screens 7 surrounding the pipe 0 and held inposition by the circular edge of the bell e. The pipe 0 may be connectedto the carburetor pipe (Z. As shown in Fig. 2, a partition or funnel h1s fitted in the inside of the receiver a to prevent the water and theimpurities, which tend to rise withthe flow of the fuel, from cominginto contact with the filter f. The bottom a of the receiver ispreferably inclined and fitted with a cook 70.

It will be understood that fuel, admitted through the pipe Z) cannotenter directly into pipe 0 because of the bell e which causes the fuelto be driven radially towards the walls of the receiver a.

When the flow of, the fuel rises up in the receiver, the fuel passesthrough the filter f, and

reaches the openings 9 in an absolutely pure or cleansed condition, andpasses through said openings into the tube 0 and so to the carburetor.it will be obvious that the inven tion is not limited to the particularconstrucinside wall of the receiver or to the cover and the outlet pipe0 may simply open into the interior of the bell ata certain distancefrom i the bottom of the latter.

,Havlng thus described the nature of the said invention and the bestmeans we know of carrying the same into practicable efi'ect we claim Ia 1. A. fuel filter for internal combustion engines comprising incombination, a closed reservoir, a fuel inlet pipe in the top thereof,

- a fuel outlet pipe in the bottom thereof, a

cap on the outlet pipe, a filter screen on the underside of the capsurrounding the outlet pipe, a perforated portion of the outlet pipeextending between the filter screen and the top of the cap, and afunnel-secured to the side of the reservoir below the cap and surw ofthe cap, and a funnel secured to the side of the reservoir below the capand surrounding the outlet pipe but out of contact with same.

8. A fuel filter for internal combustion engines comprising incombination, a closed cylindrical reservoir, a fuel inlet pipe in thetop thereof, an inclined bottom, a fuel outlet pipe in the inclinedbottom, an emptying cock on the lowest point of the inclined bottom, amushroom headed circular cap on the outlet pipe, a circular filterscreen secured to the underside of the cap surrounding the outlet pipe,a perforated portion of the outlet pipe extending within the cap withthe perforations between the top of the cap, and the filter screen and afunnel secured to the side of the reservoir below the cap and surrounding the outlet pipe but out of contact 1 with same. In testimonythat we claim the foregoing as our invention, we have signed our names.

FELIX MOREL. LOUIS TULOUP.

